Wildfire Smoke Pushes Air Quality Index in U.S. and Canada to Unhealthy Levels: Live Updates The New York TimesMaps: Tracking Air Quality and Smoke From Wildfires in Canada and the U.S. The New York TimesChicago wildfire smoke: Here's when the hazardous air is expected to clear FOX 32 ChicagoMaps show wildfire smoke forecast, air quality alerts due to pollution from Canadian, Minnesota fires CBS News
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